1. Dermoscopy Presented By : Dr H Mozayyeni
هوالشافی
Dermoscopy
Presented By : Dr H Mozayyeni

2. Dermoscopy may show melanocytic naevi to be composed entirely of:
Cobblestone pattern (dermal naevi)
Aggregated globules
Pigment network (reticular pattern)
Homogeneous/amorphous (structureless) pigmentation

4. Time-related dermoscopic patterns of reticular nevi
Time-related dermoscopic patterns of reticular nevi. In young adults, reticular nevi typically reveal a peripheral rim of brown globules as a sign for growth (symmetric enlargement). In adults, this rim is no longer present and reticular nevi display a reticular pattern as the only dermoscopic feature. In the elderly, reticular nevi tend to progressively involute.

5. Reticular pattern

6. Central hyperpigmentation

7. Reticula pattern , Central hypopigmentation

8. Reticular pattern & centeral hyperpigmentation

9. Reticular pattern , regular Holes

10. Globular pattern

11. Cobble stone pattern,globule

12. Structurless area,

13. Globular–reticular nevi are composed of a central dermal component with globules surrounded by a regular reticular network

14. Example of globular-reticular nevus exhibiting in the center predominantly structureless hypopigmentation with a few globules.

15. The peripheral rim of small brown globules is indicative for a growing nevus.

16. This CMN has a reticular pattern with hypopigmented structureless areas in the center. It also has hypertrichosis. Although globules in CMN tend to be aggregated and brown in color, on rare occasions one can fi nd nonaggregated globules with a blue color, as is evident in this CMN

17. CMN with globules throughout the lesion and distributed in dense concentration.

18. CMN with globules present centrally and surrounded by a reticular network. Note the presence of milia-like cysts, which can often be seen in CMN

19. CMN with cobblestone-like globules
CMN with cobblestone-like globules. Note the hypertrichosis, which is frequently seen in CMN.

20. CMN with target network with globules

21. CMN with milia-like cysts

22. No pigment network, and the presence of large blue-gray ovoid nests and multiple bluegray globules(BCC)

23. Dermoscopy image showing multiple blue-gray non-aggregated globules.

24. A pigmented lesion lacking a pigment network but possessing multiple leaf-like areas.

25. Leaf like structure

26. Spoke-wheel-like areas

27. Multiple arborizing blood vessels

28. Dermoscopy reveals multiple milialike cysts and a few comedo-like openings

29. lack of network within the lesion , comedo-like openings, and milia-like cysts

30. hairpin blood vessels, milia-like cysts

31. cerebriform pattern, which is created by the ridges and sulci.

32. Fat finger like